When is a good time to replace the timing belt/chain on I35

DIY Video: VQ35DE Timing Chain Tensioner and Water Pump Replacement - YouTube

Nissan 3.5L timing chain update - YouTube

Timing Chain Kit Water Pump Fit 01-04 Infiniti QX4 Nissan Pathfinder 3.5 VQ35DE ' eBay

2002 QX4 overheating trouble - Nissan Forum ' Nissan Forums (nicoclub.com)

2002 infiniti q45 water pump replacement - YouTube

2001-2004 Pathfinder Infiniti QX4 both thermostats replaced - YouTube

It looks like your water pump on a 3.5L is run off the timing chain. I got some info which may help see it but may not be the exact as your car. If you are having some problems with overheating from what I saw looks like you have 2 thermostats and after changing thermostats, you can have air trapped in your engine, which will still allow engine to overheat.

edited from article by Larry Carley, ImportCar, September 2001

Import interference engines include the following:

* Virtually all Acura and Honda 4-cylinder and V6 passenger car engines;
* 1994 and newer Audi 2.8L V6;
* 1998 & up Audi 1.8L;
* All BMW 2.5L and 2.7L 6-cylinder;
* All Hyundai 4-cylinder and V6 engines;
* Infiniti 3.0L V6;
* Isuzu 1.5L, 2.0L, 2.3L & 2.6L engines;
* Kia 2.0L in the Sportage,
* Mazda 2.0L in the MX-6 and 626, and the 3.0L V6 in the 929 and MPV;
* Most Mitsubishi engines, except the 1.8L, SOHC 2.0L 4-cylinder & SOHC 3.0L V6;
* All Nissan 4-cylinder and V6 engines;
* All Porsche engines;
* 1989-'94 Suzuki 1.3L DOHC;
* Toyota 1.5L Tercel engine;
* 1990-'92 Volkswagen 1.6L diesel; and
* Volvo 2.3L and 2.4L engines.
Unfortunately, the owners of many of these vehicles are totally unaware that their timing belt needs to be periodically replaced for preventive maintenance. The belt is out-of-sight and out-of-mind and, unless they read their owner's manual (which few ever do) and see the replacement recommendation in black-and-white, they usually ignore the belt until it's too late.

Another List

Interference engines .....
Virtually all Acura and Honda 4-cylinder and V6 passenger car engines;
Kia 2.0L "Sportage"
Mazda 2.0L in the MX-6 and 626, and the 3.0L V6 in the 929 and MPV;
Mitsubishi engines, except the 1.8L, SOHC (My Galant!) 2.0L 4-cylinder & SOHC 3.0L V6;
All Nissan 4-cylinder and V6 engines
All Porsche engines
1989-'94 Suzuki 1.3L DOHC
Toyota 1.5L Tercel
1990-'92 Volkswagen 1.6L diesel
Volvo 2.3L and 2.4L engines.
1994 and newer Audi 2.8L V6
1998 & newer Audi 1.8L
BMW 2.5L and 2.7L 6-cylinder
Hyundai 4-cylinder and V6 engines
Infiniti 3.0L V6
Isuzu 1.5L, 2.0L, 2.3L & 2.6L engines;



Try here.

Vehicle:2000 - 2002 Kia Sportage
Brand:Dayco Timing Belt
Fits Engine - Chassis:
2.0L, 4 Cylinder, GAS, FI, VIN "3", 3FE, Interference Engine - Base, Water Pump Driven by Timing Belt
2.0L, 4 Cylinder, GAS, FI, VIN "3", 3FE, Interference Engine - EX, Water Pump Driven by Timing Belt
Part #:DY95281
Description:DAYCO TIMING BELT -- Timing Belt (Camshaft), Self-Lubricating Fabric Provides Exceptional Resistance To Abrasion, Resulting In Extended Pulley And Belt Life, The Molded COG Design Runs Quieter And Is More Economical Than Chain Drives, Our Premium, High Modulus Glass Fiber Non-Stretch Cord Delivers Precise Length Stability To Keep The Engine Running Smoothly Over The Life Of The Belt, The Belt?s Compounding And Tooth Configurations Are Designed For Specific Applications Ranging From Normal Service To High Performance And High Temperature Engines

Google this."Kia 2.0 DOHC interference engine?"

nowhere. it has a timing chain that should last forever as long as you keep your oil in good shape. doesn't matter if you have a 4 cylinder or a v6, they both use chains.

yes,chain can stay intact

In the 2.7L V6, the water pump is driven by the timing chain. I'm pretty sure that in the 3.2/3.5L V6, it's driven by the timing belt. In both cases, it's a lot of work to get to, as you have to remove everything on the top (intake plenum, valve covers) and front (belts, pulleys, idlers, p/s pump, and timing cover) of the engine. Then, after removing and replacing the water pump and timing chain/belt, you have to make sure that the valve timing is exactly right, and reset the chain tensioner on the 2.7L.

A lot of work. Unless you're very comfortable with working on engines, leave it to a professional. You'll save yourself a headache (not to mention some busted knuckles). ;-)

The 2002-2006 Camry received the next generation 2.4L 4-cylinder engine (model 2AZ-FE), which combines decent power with excellent fuel economy. This engine does not have a timing belt, it has a chain that does not need to be replaced.
The second choice is very smooth and powerful 3.0-liter 24-valve all-aluminum V6 engine.
Starting from 2004, the 3.3-liter V6 DOHC VVT-i engine is available on SE V6 model.
Both, the 3.0L and 3.3L V6 engines have a timing belt that must be replaced at certain interval

A 2002 Mazda MPV 3.0 V6 has a timing chain

Please rate me if you are staisfied with the answer.

It has a timing chain.

your good for a long time you have a chain.

Timing chains generally last a long time. Depending on what motor you have in that vehicle, it might have a timing belt in it, and if this is the case, the factory recommended replacement is every 100,000 or so miles, I personally reccommend replacing timing belts every 70-80,000 miles, this way there is less a risk from throwing it.